1. The Tolkien Reader
2. Smith of Wooton Major
3. Letters from Father Christmas
5. The Fall of Arthur
(Here is a link to that post, where I go into depth about The Tolkien Reader: http://woodbtwntheworlds.blogspot.com/2014/05/5-works-by-tolkien-you-may-not-have.html).
Anyway, I'd like to talk about another of the works on that list. This is the poem "Mythopoeia."
"Mythopoeia" (I spelled it right twice now, I should win something) was the product of an argument between Tolkien and his friend C.S. Lewis. Lewis argued that myths were ultimately "worthless" because they weren't true, but Tolkien argued that myths were valuable in their own right. Apparently he didn't manage to convince Lewis in conversation, but he went home and wrote a poem about it, which he dedicated to Lewis and then showed to him. The poem must have done the trick; it reportedly convinced Lewis that myths had value and weren't just a pack of worthless lies. The moral we learn from this little story is that, if in prose you don't succeed, try, try a poem. "Mythopoeia" also functions as a great defense of fantasy literature, especially taken along with Tolkien's essay "On Fairy Stories," which you can find in The Tolkien Reader.
Because "Mythopoeia" can be difficult to come across, I've reproduced it below, taken from this website. When you're done, you might want to listen to this analysis of the poem by Dr. Corey Olsen - but all, of course, at your own choosing.
There you have it: Tolkien's "Mythopoeia." Are you convinced?